Dam.



P. K. WING.

DAM.

APPLICATION FILED JAN. 27, 1913 1,1 18,458. Patented N0v.24,1914.

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THE NORRIS PETERS ($0.. PHOTO-LITHQ. WASHING ION. n. L

F. K. WING.

DAM.

. APPLIOATION FILED JAN.2'I, 1013 1 1 1 8,458. Patented Nov. 24, 1914.

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THE NORRIS PETERS CO PHOFO-LITHO WASH/Nb VON. D C

FREDERICK K. WING, OF BUFFALO, NEW YORK.

DAM.

Specification of Letters Patent.

Patented Nov. 24,1914.

Application filed January 27, 1913.' Serial No. 744,354..

To all whom it may concern Be it known that I, FREDERICK K. WING, acitizen of theUnited States, residing at Buffalo, in the county of Erieand State of New York, have invented new and useful Improvements inDams, of which the following is a specification.

This invention relates generally to the construction of dams, but moreparticularly to reinforced concrete dams.

The object of the invention is to increase the stability of suchstructures and effectually prevent their displacement by the waterpressure.

In the accompanying drawings: Figure 1 is a transverse section of a damembodying the invention. Fig. 2 is a fragmentary rear view thereof, withthe concrete partly broken away to expose one of the longitudinaldeck-supporting beams. Fig. 3 is a fragmentary front view of the dam,with a portion of the concrete broken away to expose the metallicreinforcements. Fig. 4: is an enlarged fragmentary face view of some ofthe reinforcing bars and their spacing devices. Fig. 5 is a crosssection of said.

bars and devices on line 5-5, Fig. 4.

Similar characters of reference indicate corresponding parts throughoutthe several views.

1 indicates the buttresses of the dam arranged at suitable intervals andpreferably constructed of reinforced concrete and seated in the grooves2 in the rock or other foundation 3 to prevent sliding thereof. 4indicates the inclined deck or flooring of the dam also preferablyconstructed of reinforced concrete and supported upon longitudinal beams5 which span the inclined front portions of the buttresses at properintervals. As shown, these beams may be coated with concrete or otherappropriate material to protect them from the weather.

The toe 6 of the dam may be widened or thickened in the usualmanner, andis preferably seated in a recess or depression 7 of the foundation 3, asshown, to more reliably anchor it in place. firm and stable part of thedam because it is under the greatest water pressure, and in order toincrease the stability of the deck, I tie or anchor the same to the toeby suitable The toe is the most fasteners or connections. For thispurpose, transverse metallic anchoring bars are preferably embedded inthe concrete and extend- In the (3011-.

ed from the deck into the toe. struction shown, a set ofappropriatelyspaced parallel bars 8 extend continuously from the crestof the dam to the bottom of the toe; a second set of such bars 9alternating with the long bars 8 extend from about the middle of thedeck to the bottom of the toe; as best shown in Fig. 3; while a thirdset of comparatively short bars 10 extend from about the base of thedeck to the bottom of the toe.

During the molding of the deck the several anchoring and reinforcingbars are held at the proper distance apart by spacers of any suitableconstruction. These illustrated in the drawings consist of sheet metalstrips 11 doubled at intervals to form feet 12 which rest upon thesupporting beams 5 and provided between the feet with tongues 13 whichembrace the anchoring bars.

By the construction above described, the toe, being largely held fromsliding or displacement by the weight or pressure of the water, in turnresists displacement of the deck and remaining portions of the dam,

thus reliably anchoring the deck as well as the toe in position, withoutmaterially increasing the cost of the structure. By embedding the toe inthe rock or other foundation, the toe also serves as a cut off whichexcludes water from the underside of the dam.

If desired, the crest of the darn may be provided with an overhangingportion or apron 14, as shown. In this case, the overhanging portion ispreferably reinforced by extending the long transverse bars 8 down- Iwardly and rear-wardly into the apron, and

also by additional transverse bars 15 embedded in the apron andextending part way into the deck, say to a point below the uppersupporting beams 5, as shown in Figs.

1 and 3. The bars 15 are thus supported by the portion of the deckcarried by said beams and in turn carry the overhanging portion of thedeck on the principle of the cantaliver.

While the invention is especially applicable to concrete dams, it willbe understood that the feature of anchoring the deck to the toe alsoapplies to dams constructed of other materials.

I claim as my invention:

A dam comprising buttresses, longitudinal beams supported thereon, adeck carried by said beams and having a toe, a set of transverseanchoring bars extending throughout the height of the deck and intoWitness my hand this 25th day of Januk ary, 1 13- FREDERICK K. WING.

WVitnesses:

C. F. GEYER, E. M. GRAHAM.

Copies of this patent may be obtained for five cents each, byaddressing, the Commissioner of Patents,

Washington, D. 0.

